This paper analyzed on physical properties and pore structure characteristics of Fu-3 reservoir in block-A of North Ji-angsu basin. The results showed that the porosity is closely related to permeability and rock density. There are three pore develop-ment areas in longitudinal zones. The porosity is about 35%while blow 2 100 meters. The porosity is about 25%while between 2 100 and 2 600 meters. The porosity is about 20%while between 2 600 and 3 100 meters. Reservoirs based on mid-small pores minute throat have single pore structure. The pore structures are related to the physical properties. Quality reservoir I is mainly lo-cated in the first area and the top of the second area, about 15%. Main reservoir II is mainly located in the second area and the third area, about 55%. Poor reservoir III is mainly located in the third area, about 30%.%对苏北盆地A区块阜三段储层物性及孔隙结构特征进行了分析研究，结果表明，孔隙度与渗透率、岩石密度间具有较好的相关性，纵向上出现三个孔隙发育带，分别为<2100 m，孔隙度主要为35%左右；2100~2600 m，孔隙度主要为25%左右；2600~3100 m，孔隙度主要为20%左右。储层以中小孔微细喉为主，具单孔隙结构，且孔隙结构与物性间具有一定的对应关系，Ⅰ类优质储层主要位于第Ⅰ孔隙发育带和第Ⅱ孔隙发育带上部，约占15%；Ⅱ类主力储层主要位于第Ⅱ孔隙发育带和第Ⅲ孔隙发育带，约占55%；Ⅲ类较差储层主要位于第Ⅲ孔隙发育带，约占30%。
展开▼
